I should also say that I'm gonna be changing this hallway to being a bit more modular but I've noticed that when two meshes join together at their edges it also causes a bit of a shadow glitch where shadows from one mesh are overlayed onto the next I'll get a screenshot when I get home, I think it was only happening when two lights where in the scene but a question I have is this, is there a way to get the suns light to shine through a surface with no backface, the ceiling in this example is only one polygon with some chamfering in the edges there's no backface to it it would be handier than using point lights and would probably produce better shadows too along with the ambient setting. I was using a sun in this scene just for the ambient setting with it's brightness set to zero and shadows set to off but it just seems too much of a waste to do that.

I also tried to use basic lighting instead, but none of my meshes are producing a shadow. I have created datablocks for a static shape to access its animations from a trigger. the old play thread execution. for opening doorways. but they don't produce a shadow in basic lighting neither does any tsstatic shape as far as i can remember